Taking an engine compression test is sort of like checking your car's blood pressure. It's a quick and painless procedure ...

The compression ratio isn't just a number: it's one of the greatest determining factors in engine building. Compression ratio determines the type of fuel, how much boost, and has a significant ...

The purpose of your engine is to compress fuel and air and then ignite it, creating heat energy that then makes mechanical motion. If your engine can't compress the air and fuel properly, the engine ...

‘It’s a big difference’ — Collins questions whether the FIA test reflects real engine heat.